Video Web sites are not doing enough to keep explicit content from children, according to the Parents Television Council.

For three weeks, the group monitored four home pages and videos from Comcast's Fancast, AOL's Slashcontrol, as well as online video streaming from AT&T.

"Not a single online video provider offered a parental control option on its homepage," Winter said. "Even worse, the age-based login process is optional, easily bypassed, and is an ineffective barrier even when used properly. Of the providers we studied, TV-14 content is not blocked from any age group."

The online TV site, Hulu, received a grade of D, the highest given of the services evaluated. The other websites were given either a failing grade or a D-minus.

"Our report clearly shows that these corporate entertainment behemoths, which invest millions of dollars promoting their online video distribution outlets, are failing to protect kids on the Web," PTC President Tim Winter charged.

"The content ratings and parental control devices they tout as a solution to indecent material on television are not being applied to similarly-indecent material on their websites," he concluded.